Module 12 Practice Questions (4)

Module 12 Practice Questions (4)

Assessment

Flashcard

Mathematics

University

Hard

Created by

Wayground Content

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a null hypothesis?

Back

A null hypothesis is a statement that there is no effect or no relationship between variables. It serves as a starting point for statistical testing.

2.

FLASHCARD QUESTION

Front

What is an alternative hypothesis?

Back

An alternative hypothesis is a statement that indicates the presence of an effect or a relationship between variables, opposing the null hypothesis.

3.

FLASHCARD QUESTION

Front

What does a correlation coefficient (r) indicate?

Back

The correlation coefficient (r) measures the strength and direction of a linear relationship between two variables, ranging from -1 to 1.

4.

FLASHCARD QUESTION

Front

What does a p-value represent in hypothesis testing?

Back

A p-value indicates the probability of obtaining test results at least as extreme as the observed results, assuming the null hypothesis is true.

5.

FLASHCARD QUESTION

Front

What is the significance level (alpha) in hypothesis testing?

Back

The significance level (alpha) is the threshold for rejecting the null hypothesis, commonly set at 0.05.

6.

FLASHCARD QUESTION

Front

What is a two-way table?

Back

A two-way table is a statistical table that displays the frequency distribution of variables, allowing for the analysis of the relationship between them.

7.

FLASHCARD QUESTION

Front

How do you interpret a p-value of 0.04?

Back

A p-value of 0.04 suggests strong evidence against the null hypothesis, indicating that the results are statistically significant.

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